ZyWALL 10 Input Validation Flaw Permits Cross-Site Scripting Attacks
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SecurityTracker Alert ID: 1008644 |
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SecurityTracker URL: http://securitytracker.com/id/1008644
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CVE Reference:
GENERIC-MAP-NOMATCH
(Links to External Site)
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Date: Jan 7 2004
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Impact:
Disclosure of authentication information, Disclosure of user information, Execution of arbitrary code via network, Modification of user information
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Exploit Included: Yes
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Version(s): ZyWALL 10
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Description:
An input validation vulnerability was reported in the ZyWALL 10 router. A remote user can conduct cross-site scripting attacks.
Rafel Ivgi (The-Insider) reported that the router's administrative interface does not properly filter HTML code from user-supplied input before displaying the input. A remote user can create a specially crafted URL that, when loaded by a target administrator, will cause arbitrary scripting code to be executed by the target administrator's browser. The code will originate from the router and will run in the security context of that device. As a result, the code will be able to access the target administrator's cookies (including authentication cookies), if any, associated with the site, access data recently submitted by the target administrator via web form to the router, or take actions on the router acting as the target administrator.
A demonstration exploit URL is provided:
http://[target]/Forms/rpAuth_1?ZyXEL%20ZyWALL%20Series<script>alert('XSS')</script>
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Impact:
A remote user can access the target administrator's cookies (including authentication cookies), if any, associated with the router, access data recently submitted by the target administrator via web form to the router, or take actions on the router acting as the target administrator.
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Solution:
No solution was available at the time of this entry.
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Vendor URL: www.zyxel.com/product/model.php?indexcate=1022044503&indexFlagvalue=1021873683 (Links to External Site)
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Cause:
Input validation error
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Underlying OS:
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Message History:
None.
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Source Message Contents
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Date: Wed, 7 Jan 2004 01:01:24 +0200
Subject: ZyXEL10 OF ZyWALL Series Router Cross Site Scripting Vulnerabillity
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#######################################################################
Device: ZyXEL10 OF ZyWALL Series Router
Software: RomPager/4.07 UPnP/1.0
Vendor: http://www.zyxel.com
Versions: 4.07
Platforms: Windows
Bug: Cross Site Scripting Vulnerabillity
Risk: Low
Exploitation: Remote with browser
Date: 6 Jan 2004
Author: Rafel Ivgi, The-Insider
e-mail: the_insider@mail.com
web: http://theinsider.deep-ice.com
#######################################################################
1) Introduction
2) Bug
3) The Code
#######################################################################
===============
1) Introduction
===============
ZyXEL10 is a high quality VPN router. the ZyWALL 10 offers a powerful
firewall capability,
including Stateful Packet Inspection and Anti Denial of Service (D.o.S).
Device Details:
http://www.zyxel.com/product/model.php?indexcate=1022044503&indexFlagvalue=1
021873683
#######################################################################
======
2) Bug
======
The Vulnerabillity is Cross Site Scripting type. If an attacker will request
the followingurl from the server
http://<host>/Forms/rpAuth_1?ZyXEL%20ZyWALL%20Series<script>alert('XSS')</sc
ript>
XSS appears and the server allows an attacker to inject & execute scripts.
#######################################################################
===========
3) The Code
===========
http://<host>/Forms/rpAuth_1?ZyXEL%20ZyWALL%20Series<script>alert('XSS')</sc
ript>
#######################################################################
---
Rafel Ivgi, The-Insider
http://theinsider.deep-ice.com
"Things that are unlikeable, are NOT impossible."
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